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authorGreg Kroah-Hartman <gregkh@google.com>2021-06-16 12:05:35 +0200
committerGreg Kroah-Hartman <gregkh@google.com>2021-06-16 12:05:35 +0200
commit28a3d5b101b3adfe4eef230ead62d824a103199e (patch)
tree27c1a50aa74d3a3c65a7e4c2dfc383d693a48f30 /kernel/cgroup.c
parent8e20329c9797fabc6c2cade73b4371509b58e18b (diff)
parent78fba0641f54c8dc3624eba7cbc1252be35fa18e (diff)
Merge 4.4.273 into android-4.4-p
Changes in 4.4.273 proc: Track /proc/$pid/attr/ opener mm_struct net/nfc/rawsock.c: fix a permission check bug ASoC: sti-sas: add missing MODULE_DEVICE_TABLE isdn: mISDN: netjet: Fix crash in nj_probe: bonding: init notify_work earlier to avoid uninitialized use netlink: disable IRQs for netlink_lock_table() net: mdiobus: get rid of a BUG_ON() net/qla3xxx: fix schedule while atomic in ql_sem_spinlock scsi: vmw_pvscsi: Set correct residual data length scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal net: macb: ensure the device is available before accessing GEMGXL control registers net: appletalk: cops: Fix data race in cops_probe1 MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER bnx2x: Fix missing error code in bnx2x_iov_init_one() powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers i2c: mpc: Make use of i2c_recover_bus() i2c: mpc: implement erratum A-004447 workaround kvm: avoid speculation-based attacks from out-of-range memslot accesses btrfs: return value from btrfs_mark_extent_written() in case of error cgroup1: don't allow '\n' in renaming USB: f_ncm: ncm_bitrate (speed) is unsigned usb: dwc3: ep0: fix NULL pointer exception USB: serial: ftdi_sio: add NovaTech OrionMX product ID USB: serial: omninet: add device id for Zyxel Omni 56K Plus USB: serial: quatech2: fix control-request directions usb: gadget: eem: fix wrong eem header operation perf: Fix data race between pin_count increment/decrement NFS: Fix a potential NULL dereference in nfs_get_client() perf session: Correct buffer copying when peeking events kvm: fix previous commit for 32-bit builds NFSv4: nfs4_proc_set_acl needs to restore NFS_CAP_UIDGID_NOMAP on error. scsi: core: Only put parent device if host state differs from SHOST_CREATED ftrace: Do not blindly read the ip address in ftrace_bug() proc: only require mm_struct for writing Linux 4.4.273 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I97fdaeb60b62a57bf34ecceabda8be5cee23a0e7
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 96f0fe9441af..7dd44ebdb2c2 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -3311,6 +3311,10 @@ static int cgroup_rename(struct kernfs_node *kn, struct kernfs_node *new_parent,
struct cgroup *cgrp = kn->priv;
int ret;
+ /* do not accept '\n' to prevent making /proc/<pid>/cgroup unparsable */
+ if (strchr(new_name_str, '\n'))
+ return -EINVAL;
+
if (kernfs_type(kn) != KERNFS_DIR)
return -ENOTDIR;
if (kn->parent != new_parent)